2003 NISSAN ALMERA N16 Flash

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Page 54 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM
Erasable programmable read only
memoryEPROM ***
Evaporative emission canister EVAP canister Canister
Evaporative emission system EVAP system Evaporative emis

Page 341 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual INDEX FOR DTC
EC-11
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
ECHO2S1 (B1) P0133 0133 2×EC-155
HO2S1 (B1) P0134 0134 2×EC-165
HO2S1 (B1) P1143 1143 2×EC-296
HO2S1 (B1) P1144 1144 2×EC-302
HO2S1

Page 342 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-12
[QG (WITH EURO-OBD)]
INDEX FOR DTC
*1: 1st trip DTC No. is the same as DTC No.
*2: These numbers are prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), these nu

EC-12
[QG (WITH EURO-OBD)]
INDEX FOR DTC
*1: 1st trip DTC No. is the same as DTC No.
*2: These numbers are prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur, the MI illuminates.
DTC No. IndexEBS00K2U
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. Refer to GI-39.
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-116, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
×: Applicable –: Not applicable TW CATALYST SYS-B1 P0420 0420 2×EC-246
VEH SPD SEN/CIR AT*6P0720 0720 2×AT-123
VEH SPEED SEN/CIRC P0500 0500 2×EC-257
Items
(CONSULT-II screen terms)DTC*
1
TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
DTC*1
Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.–
Flashing*4EC-50
U1000
1000*5CAN COMM CIRCUIT 1×EC-116
U1001
1001*5CAN COMM CIRCUIT 2 –EC-116
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.––—
P0011 0011 INT/V TIM CONT-B1 2 –EC-119
P0031 0031 HO2S1 HTR (B1) 2×EC-122
P0032 0032 HO2S1 HTR (B1) 2×EC-122
P0037 0037 HO2S2 HTR (B1) 2×EC-128
P0038 0038 HO2S2 HTR (B1) 2×EC-128
P0102 0102 MAF SEN/CIRCUIT 1×EC-134
P0103 0103 MAF SEN/CIRCUIT 1×EC-134
P0112 0112 IAT SEN/CIRCUIT 2×EC-140
P0113 0113 IAT SEN/CIRCUIT 2×EC-140
P0117 0117 ECT SEN/CIRCUIT 1×EC-144
P0118 0118 ECT SEN/CIRCUIT 1×EC-144
P0132 0132 HO2S1 (B1) 2×EC-149
P0133 0133 HO2S1 (B1) 2×EC-155
P0134 0134 HO2S1 (B1) 2×EC-165
P0138 0138 HO2S2 (B1) 2×EC-172
P0139 0139 HO2S2 (B1) 2×EC-178
P0171 0171 FUEL SYS-LEAN-B1 2×EC-186
P0172 0172 FUEL SYS-RICH-B1 2×EC-193
P0221 0221 TP SENSOR 1×EC-199

Page 358 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-28
[QG (WITH EURO-OBD)]
ENGINE CONTROL SYSTEM
Ty p e 1
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
T: Transmit R: Receive
SEL825Y
Signals ECM TCMSmart entrance
control unitCombination meter
Engin

Page 359 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual ENGINE CONTROL SYSTEM
EC-29
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Ty p e 2
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
T: Transmit R: Receive
SEL826Y
Signals ECMSmart entrance control
unitC

Page 380 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-50
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
When there is an open circuit on MI circuit, the ECM cannot warn the driver by lighting MI up when there is
malfunction

EC-50
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
When there is an open circuit on MI circuit, the ECM cannot warn the driver by lighting MI up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine control system malfunctions and MI circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MI circuit and demands the driver to repair
the malfunction.
MI Flashing without DTC
If the ECM is in Diagnostic Test Mode II, MI may flash when engine is running. In this case, check ECM diag-
nostic test mode, EC-51, "
HOW TO SWITCH DIAGNOSTIC TEST MODE" .
How to switch the diagnostic test (function) modes, and details of the above functions are described later, EC-
51, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .
The following emission-related diagnostic information is cleared when the ECM memory is erased.
●Diagnostic trouble codes
●1st trip diagnostic trouble codes
●Freeze frame data
●1st trip freeze frame data
●System readiness test (SRT) codes
●Test values
●Others
Diagnostic Test
ModeKEY and ENG.
Sta tusFunction Explanation of Function
Mode I Ignition switch in
“ON” position
Engine stoppedBULB CHECK This function checks the MI bulb for damage (blown, open
circuit, etc.).
If the MI does not come on, check MI circuit.
Engine running MALFUNCTION
WARNINGThis is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MI will light up to inform the driver that
a malfunction has been detected.
The following malfunctions will light up or blink the MI in
the 1st trip.
●“Misfire (Possible three way catalyst damage)”
●″One trip detection diagnoses″
Mode II Ignition switch in
“ON” position
Engine stoppedSELF-DIAGNOSTIC
RESULTSThis function allows DTCs and 1st trip DTCs to be read.
Engine running HEATED OXYGEN SENSOR 1
MONITORThis function allows the fuel mixture condition (lean or
rich), monitored by heated oxygen sensor 1, to be read.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut

Page 382 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-52
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
codes can be identified by using the CONSULT-II or GST. A DTC will be used as an example for how to read a
code.
A particular trouble code c

EC-52
[QG (WITH EURO-OBD)]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
codes can be identified by using the CONSULT-II or GST. A DTC will be used as an example for how to read a
code.
A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC “0000” refers to no
malfunction. (See EC-10, "
INDEX FOR DTC" )
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to EC-
51, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .
●If the battery is disconnected, the DTC will be lost from the backup memory after approx 24 hours.
●Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no-load conditions. Then make sure that the MI
comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no-load.
OBD System Operation ChartEBS00K3K
RELATIONSHIP BETWEEN MI, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
●When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
●When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MI will come on. For details, refer to EC-36, "
Two Trip Detection
Logic" .
SEF952W
MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean
Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system

Page 736 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-406
[QG (WITHOUT EURO-OBD)]
INDEX FOR DTC
[QG (WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS00KE0
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type

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